Search Results for: mutations

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2,461 results

2,461 results for: mutations

  1. Genetics

    Gene therapy restores hearing in mice

    Scientists have used gene therapy to restore hearing in deaf mice.

    By Sarah Schwartz
  2. Health & Medicine

    Genetic tweak turned plague bacterium deadly

    Two genetic changes allowed plague bacteria to cause deadly lung infections and pandemic disease.

    By Sarah Schwartz
  3. Genetics

    Ebola continues to shift, but grows no more fatal

    In the West African epidemic, Ebola evolved and spread quickly, but the virus is not becoming deadlier over time.

    By Sarah Schwartz
  4. Health & Medicine

    New cancer drugs wake up sleeping killer T cells

    The immune system’s T cells, often evaded by tumors, might now resume the attack.

    By Nathan Seppa
  5. Life

    Aging: Nature’s way of reducing competition for resources

    Aging may have developed in many species as a genetic mechanism to conserve future resources. If the controversial proposal is true, then scientists may be able to greatly extend life span by deactivating the machinery for aging embedded in our DNA.

    By Andrew Grant
  6. Science & Society

    No matter the language, disease risk is hard to communicate

    Reassuring messages about MERS might seem designed to stop panic. But in reality, people need to hear the truth, even if it’s uncertain.

    By Bethany Brookshire
  7. Life

    The origin of biological clocks

    Most of Earth’s creatures keep time with the planet’s day/night cycle. Scientists are still debating how and why the circadian clocks that govern biological timekeeping evolved.

    By Tina Hesman Saey
  8. Science & Society

    Home-brewed heroin: Hold the hype

    Now is the time to think about policy for synthetically produced morphine, but the process, if it bears out, is years away from working.

    By Bethany Brookshire
  9. Health & Medicine

    Chikungunya is on the move

    The chikungunya virus, which wreaks havoc on joints, has spread via mosquitoes in tropical regions. Now it has found a way to hijack a second mosquito, posing a threat to people in Europe, North America and China.

    By Nathan Seppa
  10. Neuroscience

    No-pain gene discovered

    Scientists have identified a new genetic culprit for the inability to perceive pain.

    By Laura Sanders
  11. Genetics

    Mutations that drive cancer lurk in healthy skin

    Healthy tissue carries mutations that drive cancer, samples of normal skin cells show.

    By Tina Hesman Saey
  12. Genetics

    Ancient DNA pushes back timing of the origin of dogs

    DNA extracted from the fossil of an ancient wolf indicates dogs and wolves diverged longer ago than previously thought.

    By Tina Hesman Saey